ui/views/masked_targeter_delegate.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/views/masked_targeter_delegate.h"
   6
   7 #include "ui/gfx/path.h"
   8 #include "ui/gfx/skia_util.h"
   9 #include "ui/views/view.h"
  10
  11 namespace views {
  12
  13 bool MaskedTargeterDelegate::DoesIntersectRect(const View* target,
  14                                                const gfx::Rect& rect) const {
  15   // Early return if |rect| does not even intersect the rectangular bounds
  16   // of |target|.
  17   if (!ViewTargeterDelegate::DoesIntersectRect(target, rect))
  18     return false;
  19
  20   // Early return if |mask| is not a valid hit test mask.
  21   gfx::Path mask;
  22   if (!GetHitTestMask(&mask))
  23     return false;
  24
  25   // Return whether or not |rect| intersects the custom hit test mask
  26   // of |target|.
  27   SkRegion clip_region;
  28   clip_region.setRect(0, 0, target->width(), target->height());
  29   SkRegion mask_region;
  30   return mask_region.setPath(mask, clip_region) &&
  31          mask_region.intersects(RectToSkIRect(rect));
  32 }
  33
  34 }  // namespace views